Add unary not operator to fast compiler.

Add unary not operator to fast compiler.

Committed: http://code.google.com/p/v8/source/detail?r=3193

[William Hesse, 2009-10-30 14:32:10]

Will do other platforms

[William Hesse, 2009-10-30 14:33:39]

Will do other platforms.

[Kevin Millikin (Chromium), 2009-10-30 15:33:13]

It's confusing because of the negation, but seems right.

I'll do a sanity check on the other platforms when you're ready.

[Lasse Reichstein, 2009-10-30 18:29:29]

The code seems completely generic except for the name of the push and jmp
operations. 
From the code I have seen for the new compiler, it seems to often be the case:
generic control flow interleaved with fairly basic assembler operations (push,
pop, jump, move constants or registers to registers). 

Would it make sense to make macro-assembler macros for basic operations, and
make parts of the compiler almost completely generic?

[William Hesse, 2009-11-02 10:08:54]

Sanity check

[Kevin Millikin (Chromium), 2009-11-02 10:16:13]

LGTM.